In this chapter, we learn about the different types of energy crystals, and how they can be used to boost a person's physical health. The first type of energy crystal is a "grade s" energy crystal, which is expensive and has a higher purity than a synthetic energy crystal. The second type is an "extremely purified energy crystal," which is much more powerful and can also be used as a battery charger. The third type is a super-purity energy crystal that has a high chance of awakening one's special powers. In other words, if you're a super strong person, you'll be able to use these crystals to power your body. The only problem is that these crystals contain a lot of pure energy, which makes them unstable.